EP 2718120 B1 20170222 - TYRE BEAD FOR HEAVY DUTY CONSTRUCTION VEHICLE
Title (en)
TYRE BEAD FOR HEAVY DUTY CONSTRUCTION VEHICLE
Title (de)
REIFENWULST FÜR SCHWERLASTFAHRZEUG BAUMASCHINENART
Title (fr)
BOURRELET DE PNEUMATIQUE POUR VEHICULE LOURD DE TYPE GENIE CIVIL
Publication
Application
Priority
- FR 1154926 A 20110607
- EP 2012060646 W 20120606
Abstract (en)
[origin: WO2012168270A1] The invention relates to improvements to the endurance of the beads of a radial tyre for a heavy vehicle of construction plant type, by reducing the cracking that starts at the end of the turned-back portion and spreads through the coating, edging and filling polymer materials. According to the invention, a transition element (25), made of a transition polymer material, is at least partially in contact, over its axially exterior face, with the edging polymer material (22) and, over its axially interior face, with a filling polymer material (23b), the radially exterior (E25) and radially interior (I25) ends of the transition element are respectively radially on the outside and radially on the inside of the end of the turned-back portion and the elastic modulus at 10% elongation of the transition polymer material is somewhere between the respective moduli at 10% elongation of the edging polymer material and of the filling polymer material with which the transition element is in contact.
IPC 8 full level
B60C 15/00 (2006.01); B60C 15/06 (2006.01)
CPC (source: EP US)
B60C 15/0009 (2013.01 - US); B60C 15/0603 (2013.01 - US); B60C 15/0607 (2013.01 - EP US); B60C 2015/061 (2013.01 - EP US); B60C 2015/0614 (2013.01 - EP US); B60C 2015/0621 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012168270 A1 20121213; AU 2012266467 A1 20140123; AU 2012266467 B2 20160526; BR 112013030911 A2 20170620; BR 112013030911 A8 20171226; BR 112013030911 B1 20201006; CA 2837352 A1 20121213; CL 2013003469 A1 20140822; CN 103582575 A 20140212; CN 103582575 B 20160420; EA 201391824 A1 20140430; EP 2718120 A1 20140416; EP 2718120 B1 20170222; FR 2976219 A1 20121214; FR 2976219 B1 20140103; JP 2014518811 A 20140807; JP 6013464 B2 20161025; US 2014158272 A1 20140612; US 9421830 B2 20160823; ZA 201308921 B 20140827
DOCDB simple family (application)
EP 2012060646 W 20120606; AU 2012266467 A 20120606; BR 112013030911 A 20120606; CA 2837352 A 20120606; CL 2013003469 A 20131204; CN 201280027750 A 20120606; EA 201391824 A 20120606; EP 12729062 A 20120606; FR 1154926 A 20110607; JP 2014514046 A 20120606; US 201214123914 A 20120606; ZA 201308921 A 20131127